[PATCH] x86: "make isoimage" support; FDINITRD= support; minor cleanups
Add a "make isoimage" to i386 and x86-64, which allows the automatic
creation of a bootable CD image. It also adds an option FDINITRD= to
include an initrd of the user's choice in generated floppy- or CD boot
images. Finally, some minor cleanups of the image generation code.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile
index f136752..33e5547 100644
--- a/arch/i386/boot/Makefile
+++ b/arch/i386/boot/Makefile
@@ -62,8 +62,12 @@
$(obj)/compressed/vmlinux: FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
-# Set this if you want to pass append arguments to the zdisk/fdimage kernel
+# Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
FDARGS =
+# Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
+FDINITRD =
+
+image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
$(obj)/mtools.conf: $(src)/mtools.conf.in
sed -e 's|@OBJ@|$(obj)|g' < $< > $@
@@ -72,8 +76,11 @@
zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
syslinux /dev/fd0 ; sync
- echo 'default linux $(FDARGS)' | \
+ echo '$(image_cmdline)' | \
MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
+ if [ -f '$(FDINITRD)' ] ; then \
+ MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
+ fi
MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync
# These require being root or having syslinux 2.02 or higher installed
@@ -81,18 +88,39 @@
dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
syslinux $(obj)/fdimage ; sync
- echo 'default linux $(FDARGS)' | \
+ echo '$(image_cmdline)' | \
MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
+ if [ -f '$(FDINITRD)' ] ; then \
+ MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
+ fi
MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync
fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
syslinux $(obj)/fdimage ; sync
- echo 'default linux $(FDARGS)' | \
+ echo '$(image_cmdline)' | \
MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
+ if [ -f '$(FDINITRD)' ] ; then \
+ MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
+ fi
MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync
+isoimage: $(BOOTIMAGE)
+ -rm -rf $(obj)/isoimage
+ mkdir $(obj)/isoimage
+ cp `echo /usr/lib*/syslinux/isolinux.bin | awk '{ print $1; }'` \
+ $(obj)/isoimage
+ cp $(BOOTIMAGE) $(obj)/isoimage/linux
+ echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
+ if [ -f '$(FDINITRD)' ] ; then \
+ cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
+ fi
+ mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
+ -no-emul-boot -boot-load-size 4 -boot-info-table \
+ $(obj)/isoimage
+ rm -rf $(obj)/isoimage
+
zlilo: $(BOOTIMAGE)
if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi